Home / 390,193.83-585,282.43-179,831.77

Finding the Fourth Proportional to 390,193.83, 585,282.43 and 179,831.77

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Solution

The fourth proportional to 390,193.83, 585,282.43 and 179,831.77 is: 269,743.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,193.83 : 585,282.43 = 179,831.77 : x
  2. Step 2: Convert to fraction form
    390,193.83/585,282.43 = 179,831.77/x
  3. Step 3: Cross multiply
    390,193.83x = 585,282.43 × 179,831.77
  4. Step 4: Simplify right side
    390,193.83x = 105,252,376,250.27
  5. Step 5: Solve for x
    x = 105,252,376,250.27/390,193.83
  6. Step 6: Final answer
    x = 269,743.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.